What are the common problems? I checked the boot and it seems to be fine. Fuse is intact. Would it be a bad window regulator? I've changed these on other vehicles, but never a Suburban.
Any insights would be greatly appreciated.

The rear passenger window on my 01 stopped working, I took door panal off and the plug on the motor was loose. It worked for a few weeks and quit again, have not checked to see what happened now.